	body{
		width: 100%;
		height: 100%;
		margin: 0;
		padding: 0;
		background: black;
		color: white;
		font-family:"Microsoft YaHei";
	}
	html{
		margin: 0;
		padding: 0;
	}
	.logo-box{
		width: 20%;
		height: 20%;
		position: relative;
		top:26%;
		left: 40%;
		text-align: center;
	}
	.input {
	    width: 80%;
	    box-sizing: border-box;
	    border-radius: 2px;
	    border: 1px solid #555;
	    background: rgba(0,0,0,.9);
	    padding: 12px 15px;
	    font-size: 17px;
	    margin: 7px auto;
	    color: #ccc;
	}
	.submit {
		margin: 1px;
	    font-size: 20px;
	    border:none;
	    width: 80%;
	    background: #ff9900;
	    border-radius: 4px;
	    height: 35px;
	    color: black;
	    cursor: pointer;
	    transition: 0.3s;
		font-weight: bold;
	}
	.submit:hover {
	    background: #ffa722;
	}
	.reg {
		margin: 1px;
	    font-size: 20px;
	    border:none;
	    width: 80%;
	    background: #ff9900;
	    border-radius: 4px;
	    height: 35px;
	    color: black;
	    cursor: pointer;
	    transition: 0.3s;
		font-weight: bold;
	}
	.reg:hover {
	    background: #ffa722;
	}